1 /*
2 * Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "classfile/stringTable.hpp"
27 #include "classfile/symbolTable.hpp"
28 #include "code/icBuffer.hpp"
29 #include "gc/shared/collectedHeap.hpp"
30 #if INCLUDE_JVMCI
31 #include "jvmci/jvmci.hpp"
32 #endif
33 #include "interpreter/bytecodes.hpp"
34 #include "logging/log.hpp"
35 #include "logging/logTag.hpp"
36 #include "memory/universe.hpp"
37 #include "prims/methodHandles.hpp"
38 #include "runtime/atomic.hpp"
39 #include "runtime/flags/jvmFlag.hpp"
40 #include "runtime/handles.inline.hpp"
41 #include "runtime/icache.hpp"
42 #include "runtime/init.hpp"
43 #include "runtime/safepoint.hpp"
44 #include "runtime/sharedRuntime.hpp"
45 #include "services/memTracker.hpp"
46 #include "utilities/macros.hpp"
47
48
49 // Initialization done by VM thread in vm_init_globals()
50 void check_ThreadShadow();
51 void eventlog_init();
52 void mutex_init();
53 void oopstorage_init();
54 void chunkpool_init();
55 void perfMemory_init();
56 void SuspendibleThreadSet_init();
57
58 // Initialization done by Java thread in init_globals()
59 void management_init();
60 void bytecodes_init();
61 void classLoader_init1();
62 void compilationPolicy_init();
63 void codeCache_init();
64 void VM_Version_init();
65 void stubRoutines_init1();
66 jint universe_init(); // depends on codeCache_init and stubRoutines_init
67 // depends on universe_init, must be before interpreter_init (currently only on SPARC)
68 TSAN_ONLY(jint tsan_init();)
69 void gc_barrier_stubs_init();
70 void interpreter_init(); // before any methods loaded
71 void invocationCounter_init(); // before any methods loaded
72 void accessFlags_init();
73 void templateTable_init();
74 void InterfaceSupport_init();
75 void universe2_init(); // dependent on codeCache_init and stubRoutines_init, loads primordial classes
76 void referenceProcessor_init();
77 void jni_handles_init();
78 void vmStructs_init();
79
80 void vtableStubs_init();
81 void InlineCacheBuffer_init();
82 void compilerOracle_init();
83 bool compileBroker_init();
84 void dependencyContext_init();
85
86 // Initialization after compiler initialization
87 bool universe_post_init(); // must happen after compiler_init
88 void javaClasses_init(); // must happen after vtable initialization
89 void stubRoutines_init2(); // note: StubRoutines need 2-phase init
90
91 // Do not disable thread-local-storage, as it is important for some
92 // JNI/JVM/JVMTI functions and signal handlers to work properly
93 // during VM shutdown
94 void perfMemory_exit();
95 void ostream_exit();
96 TSAN_ONLY(void tsan_exit();)
97
98 void vm_init_globals() {
99 check_ThreadShadow();
100 basic_types_init();
101 eventlog_init();
102 mutex_init();
103 oopstorage_init();
104 chunkpool_init();
105 perfMemory_init();
106 SuspendibleThreadSet_init();
107 }
108
109 jint init_globals() {
110 HandleMark hm;
111 management_init();
112 bytecodes_init();
113 classLoader_init1();
114 compilationPolicy_init();
115 codeCache_init();
116 VM_Version_init();
117 stubRoutines_init1();
118 jint status = universe_init(); // dependent on codeCache_init and
119 // stubRoutines_init1 and metaspace_init.
120 if (status != JNI_OK)
121 return status;
122
123 TSAN_RUNTIME_ONLY(
124 status = tsan_init();
125 if (status != JNI_OK) {
126 return status;
127 }
128 );
129
130 gc_barrier_stubs_init(); // depends on universe_init, must be before interpreter_init
131 interpreter_init(); // before any methods loaded
132 invocationCounter_init(); // before any methods loaded
133 accessFlags_init();
134 templateTable_init();
135 InterfaceSupport_init();
136 VMRegImpl::set_regName(); // need this before generate_stubs (for printing oop maps).
137 SharedRuntime::generate_stubs();
138 universe2_init(); // dependent on codeCache_init and stubRoutines_init1
139 javaClasses_init();// must happen after vtable initialization, before referenceProcessor_init
140 referenceProcessor_init();
141 jni_handles_init();
142 #if INCLUDE_VM_STRUCTS
143 vmStructs_init();
144 #endif // INCLUDE_VM_STRUCTS
145
146 vtableStubs_init();
147 InlineCacheBuffer_init();
148 compilerOracle_init();
149 dependencyContext_init();
150
151 if (!compileBroker_init()) {
152 return JNI_EINVAL;
153 }
154 #if INCLUDE_JVMCI
155 if (EnableJVMCI) {
156 JVMCI::initialize_globals();
157 }
158 #endif
159
160 if (!universe_post_init()) {
161 return JNI_ERR;
162 }
163 stubRoutines_init2(); // note: StubRoutines need 2-phase init
164 MethodHandles::generate_adapters();
165
166 #if INCLUDE_NMT
167 // Solaris stack is walkable only after stubRoutines are set up.
168 // On Other platforms, the stack is always walkable.
169 NMT_stack_walkable = true;
170 #endif // INCLUDE_NMT
171
172 // All the flags that get adjusted by VM_Version_init and os::init_2
173 // have been set so dump the flags now.
174 if (PrintFlagsFinal || PrintFlagsRanges) {
175 JVMFlag::printFlags(tty, false, PrintFlagsRanges);
176 }
177
178 return JNI_OK;
179 }
180
181
182 void exit_globals() {
183 static bool destructorsCalled = false;
184 if (!destructorsCalled) {
185 destructorsCalled = true;
186
187 TSAN_RUNTIME_ONLY(tsan_exit());
188
189 if (log_is_enabled(Info, monitorinflation)) {
190 // The ObjectMonitor subsystem uses perf counters so
191 // do this before perfMemory_exit().
192 // ObjectSynchronizer::finish_deflate_idle_monitors()'s call
193 // to audit_and_print_stats() is done at the Debug level.
194 ObjectSynchronizer::audit_and_print_stats(true /* on_exit */);
195 }
196 perfMemory_exit();
197 SafepointTracing::statistics_exit_log();
198 if (PrintStringTableStatistics) {
199 SymbolTable::dump(tty);
200 StringTable::dump(tty);
201 }
202 ostream_exit();
203 }
204 }
205
206 static volatile bool _init_completed = false;
207
208 bool is_init_completed() {
209 return Atomic::load_acquire(&_init_completed);
210 }
211
212 void wait_init_completed() {
213 MonitorLocker ml(InitCompleted_lock, Monitor::_no_safepoint_check_flag);
214 while (!_init_completed) {
215 ml.wait();
216 }
217 }
218
219 void set_init_completed() {
220 assert(Universe::is_fully_initialized(), "Should have completed initialization");
221 MonitorLocker ml(InitCompleted_lock, Monitor::_no_safepoint_check_flag);
222 Atomic::release_store(&_init_completed, true);
223 ml.notify_all();
224 }